VideoClip.frameRate

Description

The frame rate of the clip in frames per second. (Read Only).

The frame rate is the number of frames that are displayed in one second of the video clip. This is useful if you want to synchronize with other effects in your project, and monitor performance. However, VideoPlayer.frameRate usually gives a more accurate result.

Additional resources: VideoPlayer.frameRate, VideoPlayer.frameCount.

// This script uses both the VideoPlayer and VideoClip components' frame count and frame rate
// to calculate the length of the video in seconds. Sometimes this can return different results, 
// but the VideoPlayer is more accurate, especially after a full playthrough.
// The script recalculates the counts on each loop. 

using UnityEngine;
using UnityEngine.Video;

public class VideoClipLengthCalculator : MonoBehaviour
{
    VideoPlayer videoPlayer;

    void Start()
    {
        if (videoPlayer != null)
        {
            videoPlayer = GetComponent<VideoPlayer>();
            videoPlayer.isLooping = true;
            VideoClip videoClip = videoPlayer.clip;

            if (videoClip != null)
            {
                CalculateVideoLength(videoClip);
                videoPlayer.loopPointReached += OnLoop;
                videoPlayer.Play();
            }
            else
            {
                Debug.LogWarning("VideoClip is not assigned.");
            }
        }
        else
        {
            Debug.LogWarning("VideoPlayer is not assigned.");
        }
    }

    void CalculateVideoLength(VideoClip clip)
    {
        // Get frame count and frame rate from the VideoClip. 
        ulong videoClipFrameCount = clip.frameCount;
        double videoClipFrameRate = clip.frameRate;

        // Calculate the length in seconds (VideoClip) and output to console. 
        double videoClipLengthInSeconds = videoClipFrameCount / videoClipFrameRate; 
        Debug.Log($"Calculated VideoClip length: {videoClipLengthInSeconds} seconds.");

        // Get frame count and frame rate from the VideoPlayer. 
        ulong videoPlayerFrameCount = videoPlayer.frameCount;
        double videoPlayerFrameRate = videoPlayer.frameRate;

        // Calculate the length in seconds (VideoPlayer) and output to console. 
        double videoPlayerLengthInSeconds = videoPlayerFrameCount / videoPlayerFrameRate;
        Debug.Log($"Calculated VideoPlayer Length: {videoPlayerLengthInSeconds} seconds.");

    }

    void OnLoop(VideoPlayer vp)
    {
        // Recalculate the video length after loop happens. 
        CalculateVideoLength(vp.clip);
    }
}